LaCie PC Lock 1.7 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program is included in Security Tools.
This free PC program is developed for Windows XP/7/8/10/11 environment, 32 and 64-bit versions. The following version: 1.7 is the most frequently downloaded one by the program users. We recommend checking the downloaded files with any free antivirus. This free program was originally developed by LaCie.
From the developer:
With LaCie PC/Mac® Lock software, it's easy to keep all your files safe and secure—simply by using the LaCie USB key that you already own. PC/Mac Lock allows you to log on and off your computer simply by inserting a USB key. Once you've plugged in your key, PC/Mac Lock will automatically log you on—then when you remove it, you're automatically logged out, giving you protection and security.
You may want to check out more software, such as XUS PC Lock Ultimate Edition, Chris PC-Lock or XUS PC Lock, which might be similar to LaCie PC Lock.
Mac protection
Network tools